This is a Snap-on 16-piece mix drive SAE & Metric stubby hex bit socket set, including sizes from 1/8in. And 3mm to 10mm. The sockets have a hex/Allen drive type and are finished in chrome. The set includes sockets for 1/4in. Snap-on Tools USA NEW 8pc Mix Drive. SAE Stubby Hex Bit Socket Driver Set. 208EFTAXSY = SAE and. TMAXS4.5E = 9/64.